I think you might be missing something. She said she was going to quit but thought her sister was a viable option. That wasn't to be so she'll go back to her plan to quit. I would guess that the exchanges between Crim and W are more fraught for everyone than the exchange between sisters.
I'm not there, so of course I don't know but that would have been my thinking in that situation.
Crimson, does the sister have children?
Me 57/H 58 M36 S 2.5yrs R 12/13
Let me give up the need to know why things happen as they do. I will never know and constant wondering is constant suffering. Caroline Myss